I like your prezi. It's funny. I especially like the second youtube video. The first video is funny, but it might be a little long. You might want to make one path for each of the circles of information. You can see a lot of the information without needing to zoom in so many times for each circle. After the wording near the end that says "so how is mankind interacting with food lately?" the statement "arguably this" seems a little awkward to me, but I like how you set up the video.